Key extracting or removing tool.



L. GOLLY.

KEY EXTRACTING 0R REMOVING TOOL.

APPLICATION FILED NOV. I4. 1913.

1,155,721. Patented 001;. 5, 1915.

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fiig =y 7 L INVEEORil M Inns 0 t 6a 5 BY My M MQBQCMM ATTORNEYS L.GOLLY:

KEY EXTRACTING 0R REMOVING TOOL.

APPLICATION FILED NOV. I4. I913.

Patented Oct. 5, 1915.

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LOUIS GOLLY, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF 'IO JAMES H.

DEVEREUX, 0F SAGAPONACK, NEW YORK, AND

OF NEW YORK, N. Y.

ONE-HALF TO LANIER MCKEE,

KEY EXTRACTING OR REMOVING TOOL.

Specification of Letters Patent.

Patented Oct. 5, 1.915.

Application filed. November 14, 15 313. Serial No. 800,997.

To all whom it may concern.

Be it known that I, LOUIS GOLLY, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Key Extracting or-Removing Tools; and I do hereby declare the following to be a full, clear,and exact description of'the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to'characters ofreference marked thereon, which form a part of this specifica tron. r

The invention has reference, generally, to improvements in machiniststools or implements; and, the present invention relates, moreparticularly, to a novel and simply constructed drawing or pulling toolwhich is adapted to grip the projecting end-portion of a key, such as isordinarily used with a shaft and a collar or the hub of a wheel 1mounted upon said shaft, for readily withdrawing the key from thekey-way, when it is desired to disconnect the collar or wheel from itsfastened position upon the shaft;

The present invention has for its principal object toprovide a novel andsimply constructed, as well as an efliciently operating key-removing orpulling tool, which is readily centered upon the shaft, is provided withadjustable gripping jaws which enables the tool to be readilyapplied tothe key, and

permits of the key to be easily removed from the key-way, no matter howtightly the key is held in place. Another object of the presentinvention is to provide a novel construction of key-gripping jaws, andmeans for mounting and arranging the same in their operative or grippingrelation to a key, in such a manner as to retain all the advantages of astrong wedge-like action in forcing the key-gripplng jaws against thekey, preparatory to the extracting operation, and at the same time sodistributing and limiting the strains of said wedge-like action duringthe actual I key-extracting operation, that danger of cracking orbreaking either the key-gripping jaws or the element in which they aremounted is eliminated.

Other objects of this invention not at this time more particularlyenumerated will be clearly understood from thefollowing detaileddescription of the present invention.

With the various objects of the invention in view, the said inventionconsists, primarily, in the novel key-extracting or with drawing toolhereinafter set forth; and, the invention consists, furthermore, in thenovel arrangements and combinations of the various devices and parts, aswell as in the details of the construction of the same, all of whichwill be more fully described in the following specification, and thenfinally embodied in the clauses of the claims which are appendedto andwhich form an essential part of the said specification.

The invention is clearly illustrated in the accompanying drawings, inwhich z- Figure 1 is a side elevation of a key-removing or pulling tool,showing an embodiment of the principles of the present invention, and anelevation of a portion of a shaft and a wheel keyed upon said shaft,said view illustrating the application of the tool to the shaft andprojecting end-portion of thekey, with the gripping jaws of the toolgripping the key. Fig. 2 is a similar view of all the parts representedin said Fig. 1, but showing the gripping jaws in their retractedpositions gripping the projecting end-portion of the key, and the latterbeing shown extracted. Fig. 3 is a top or plan view of thekey-extracting or pulling tool; and Fig. 4 is a bottom view of the same.Fig. 5is ahorizontal vertical section of the parts represented in saidFig. 1; Fig. 6 is a transverse sectional representation of the tool.said section being taken on line 66 in said Fig. 5; Fig. 7 is a similarsectional representation of the tool, said section being taken on line7-7 in said Fig. 5; and Fig. 8 is another cross-section taken on line 88in Fig. 3.

Similar characters of reference are employed in all of the abovedescribed views, to indicate corresponding parts.

Referring now to the severalfigures-of the drawings, the referencecharacter 1 indlcates a portion of ashaft, upon which is mounted a wheel2 provided with a hub 3, the wheel being tightly fixed upon the shaft bymeans of the usual key 4.

ber 6, cut away to provide an inverted V- shaped marginal edge-portion,as 7, substantially as illustrated in Fig. 7 of the drawings. The saidwalls 5 and 6 in this manner 7 form what may be termed a casing closedat one end, and open 1n its lower part of bottom and at its other end.The arc-shaped wall-5 is also provided with a pair of longitudinallyextending openings, as 8, of any suitable shape, and the end-wall 6 isalso provided with an opening 9. Movably disposed within the chamberedportion of said main casting or shell-like body is a grippingjaw-bearing element or block 10, bounded at one end by the vertical wall11, and at the other end by the suitably-disposed angular wall-portions12 and 13, see Figs. 1, 2, 3 and 4c of the drawings. Upon its upperportion the said element or block 10 is bounded by a conveXly-curvedsurface 14 which conforms to the general inner contour of the maincasting or shell-like body, as shown in Figs. 6 and S of 'the drawings,the said element or block 10 being also provided with an invertedV-shaped bottom-surface, as 15, corresponding substantially to themarginal edge-portion 7 of the vertical wall 6 of the main casting orshell-like body. From an inspection of Figs. 41 and 6 of the drawings,it will be seen that the said element or block 10is also made in itsbottomportion with a chambered part, as 16, formed with a pair ofangularly disposed guide-channels or depressions, as 17, and inalinement with said channels or depres sions and in communication withsaid chamber 16 are a pair of angularly extending stem-receiving ductsor holes 18. Suitably connected with and extending from the angularwall-portions 12 and 13 of the said element or block 10 is ascrew-threaded stem 19, said stem extending into and being nonrotatablybut longitudinally movable in the previously-mentioned hole or opening 9in the end wall 6, as will be clearly understood from an inspection ofFig. 5 of the drawings.

Upon that portion of the screw-threaded stem 19 which extends from theoutside of the end-wall 6 is a nut 20, for a purpose to be presentlymore fully described.

Adjustably and movably disposed within the hereinbefore-mentionedguide-channels or depressions 17 and the ducts or holes 18 is a pair ofgripping members or elements,

each gripping element consisting, essentially, of a stem 21 having ascrew-threaded end-portion 22 and a gripping jaw 23, formed with thegripping teeth or serrations 24. Upon each screw-threaded end-portion i22 is an anchor or holding nut, as 25, substantially as shown in Figs. 3and 4: of the drawings. From an inspection of Fig. 6 of the drawings, itwill be seen that the element or block 10 isformed contiguous to theguide-channels 17 with shouldered portions 17, and that each ripping jaw23 is made with correspondingly shouldered portions 23 which registerwith the shouldered portions 17 so as to prevent rocking of the jaws intheir respective guidechannels 17 as will be clearly evident. Thescrew-threaded stem 19 is also provided, at a point between said anchoror holding nuts 25 and the inner surface of the end-wall 6, with anadjusting or setting-up nut, as 26.

It will be evident that on account/of the open bottom of the maincasting or shell-like body, and the angular lower surface-portions ofthe end-wall 6 and the gripping jaw-bearing element or block 10, thekeyextracting or pulling device is readily arranged upon a shaft in themanner illustrated in the several figures of the drawings, and the sametool is equally adapted for extracting both large and small keys fromcollars and the hubs of wheels mounted on shafts of dilferent sizes.

The manner of operating the key-extracting or pullingtool for theremoval of the key from the keyway is very simple, and briefly is asfollows :-l-laving placed the tool upon the shaft in the .mannerrepresented in 1, 2 and 5, with the teeth or serrations 24E of thegripping jaws 23 arranged upon the oppo'site faces of the proj ectingend-portion of the key l, the anchor or holding nuts 25 being loosenedand thereby spaced away from. the end surface of the block or element10. The adjusting or setting-up nut 26 is then screwed against the saidanchor or holding nuts connected with the respective stems 21, therebycausing the stems 21 to move forward, and owing to the angulardisposition and guiding of said stems 21, the gripping jaws 23 arecarried into biting relation to the sides of said key 4, and then bydrawing rearwardly the element or block 10 by screwing the nut 20 uponthe screw-threaded stem 19, "and against the wall 6 as a base, the teethor serrations 24: of the gripping jaws 23 are caused to embed themselvesor bite into the sides ofthe key 4, thus-firmly gripping the same. Whenthe gripping jaws have thus been caused to grip the sides of the key 4,the anchor or holding nuts 25 are again screwed down upon the threadedend 22 of the stem 21, to take up lost motion, and tightly abut the sameagainst the end surface of the block or element 10. hen the parts havethus been adjusted and related the device is ready for the keyextractingoperation, which is accomplished by retracting the block or element 10,carrying the gripping-jaws, by screwing the nut-2O upon thestem 19 andagainst the end-wall 6 as a base, with the result that the marginalencledge portion 27 of the main casting or shelllike body is moveddirectly against the face of the hub 3 of the wheel, and continuing toturn the said nut 20, the said hub acts as an abutment to any furthermovement of the said main casting or shell-like body. At this time,however, the jaw-carrying element or block 10 begins to readily movewithin the chambered part of the said main casting or shell-like body,and the gripping surface of said jaws being in tight gripping or holdingengagement with the projecting end-portion of the key 4:, the key iseasily and quickly extracted from the key way in the shaft and hub ofthe wheel. During the extracting operation, performed as abovedescribed, it will be apparent that, after the gripping jaws have oncebeen embedded in the key 4, and the anchor or holding nuts 25 screwedtightly against the block or element 10, the gripping jaws are heldagainst any further outward movement in the inclined channels in whichthey are mounted, consequently the wedge-like action of the same isgreatly diminished, and principal strain during the extracting movementis a direct pull upon the gripping jaws and their stems, which isresisted bythe engagement of said anchor or holding nuts with the end ofsaid block or element 10, consequently lateral strains against the sidesof the block or element 10 are so diminished and controlled that dangerof cracking or breaking either tne block or element 10, or the jawsthemselves is eliminated.

I am aware that some changes may be made in the general arrangements andconr binations of the several devices and parts, as well as in thedetails of the construction of the said parts, without departing fromthe scope of the present invention as set forth in the foregoingspecification and as defined in the clauses of the claims which areappended thereto. Hence I do not limit my present inventionto the exactarrange ments and combinations of the several de vices and parts asdescribed in the foregoing specification, nor do I confine myself to theexact details of the construction of the said parts, as illustrated inthe accompanying drawings, except as required by the scope of theappended claims.

' I claim 1. A key-removing device comprising a main shell-like bodyformed with a lower open portion extending longitudinally of the entirelength of said shell-like body for positively seating said body upon ashaft and against the element from which the key is to be extracted, aplurality of gripping jaws within said body, said jaws being adapted tobe brought into gripped relation with a portion of the key.

2. A key-removing device comprising a main shell-like body formed with alower open portion extending longitudinally of the entire length of saidshell-like body foropen portion extending longitudinally of the entirelength of said shell-like body for positively seating said body upon ashaft and against the element from which the key is to be extracted, aplurality of gripping jaws within said body, a socketed element in whichsaid gripping jaws are movably disposed, means for forcing said jawsinto gripping relation with portion of the key, and means connected withsaid socketed element for bringing said shell-like body into resistingengagement with the element in which the key is located and cooperatingwith said gripping jaws for the extraction of the key.

4. A key-removing device comprising a main shell-like body formed with alower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a jawblockInovably arranged in said shell-like body, said jaw-block being providedwith guide-channels, and stems slidably disposed in said channels, and agripping jaw upon each stem, means connected with said stems for forcingsaid jaws into gripping relation with portions of the key, and meansconnected with said j aw-block for bringing said shell-like body intoresisting engagement with the element in which the key is located andcooperating with said gripping jaws for the extraction of the key.

5. A key-removing device comprising a main shell-like body formed with alower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a jawblockmovably arranged in said shell-like body, said jaw-block being providedwith guide-channels, stems slidably disposed in said channels, and agripping jaw upon each stem, each stem being also provided with ascrew-threaded portion, an anchor nut upon the screw-threaded portionsof said stems, and means connected with said j aw-block for bringingsaid shell-like body into resisting engagement with the element in whichthe key is located and cooperating with said gripping aws for theextraction of the key.

key-removing device comprising a main shell-like body formed with alower open portion, for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a jaw" blockmovably arranged in said shell-like body, said jaw-block being providedwith guide-channels, stems slidably disposed in said channels, and agripping jaw upon each stem, means connected with said stems for forcingsaid jaws into gripping relation with portions'of the key, ascrew-threaded stem extending from said jaw-block, and a nut upon saidscrew-threadedstem, all arranged for bringing said shell-like body intoresisting engagement with the element in which the key is located andcooperating with said gripping jaws for the extraction of the key.

7 A key-removing device comprising a main shell-like body formed with alower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a jawblockmovably arranged in said shell-like body, said jaw-block being providedwith guide-channels, stems slidably disposed in said channels, and agripping jaw upon each stem, each stem being also provided with ascrew-threaded portion, an anchor nut upon the screw-threaded portionsof said stems, a screw-threaded stem extending from said jaw-block, anda nut upon said screwthreaded stem, all arranged for bringing saidshell-like body into resisting engagement with the element in which thekey is located and cooperating with said gripping jaws for theextraction of the key.

8. A key-removing device comprising a main shell-like body formed with alower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a jaw-blockmovably arranged in said shelllike body, said jaw-block being providedwith guide-channels, stems slidably disposed in said channels, and agripping jaw upon each stem, each stem being also provided with ascrew-threaded portion, an anchor nut upon the screw-threaded portionsof said stems, a screw-threaded stem extending from said jaw-block, anda nut upon said screw-threaded stem, all arranged forbringing saidshell-like body into resisting engagement with the element in which thekey is located and coiiperating with said gripping jaws for theextraction of the key, and an adjusting nut upon said last-mentionedscrew-threaded stem adapted to be brought into engagement with saidanchor nuts upon said gripping jaw-provided stems.

9. A key-removing device comprising a main chambered cylindrical shellformed with an end-wall provided with an opening, said shell having anopen bottom and being open at the end opposite said end-wall, and saidend-wall being provided with a re slidably disposed in said channels,and a gripping jaw upon each stem, means connected with said stems forforcing said jaws into gripping relation with portions of the key, andmeans connected with said jawblock and extending through the opening insaid end-wall for bringing said shell into resisting engagement with theelement in which the key is located and cooperating with said grippingjaws for the extraction of the key.

10. A key removing device comprising a main chambered cylindrical shellformed with an end-wall provided with an opening, said shell having anopen bottom and being open at the end opposite said end-wall, and saidend-wall being provided with a reversed V-shaped marginal edge-portion,a jaw-block movably disposed in said shell, said block being providedwith a lower reversed V-shaped surface, all for the arrangement of saidshell and said block upon a shaft and against the element from which thekey is to be extracted, said jaw-block being provided withguide-channels, stems slidably disposed in said channels, and a grippingjaw upon each stem, each stem being also provided with a screw-threadedportion, an anchor nut upon the screwthreaded portions of said stems,and means connected with said jaw-block for bringing said shell-likebody into resisting engage ment with the element in which the key islocated and cooperating with said gripping jaws for the extraction ofthe key.

11. A key-removing device comprising a main chambered cylindrical shellformed with an end-wall provided with an opening, said shell having anopen bottom and being open at the end opposite said end-wall, and saidend-wall being provided with a reversed V-shaped marginal edge-portion,a jaw-block mo-vably disposed in said shell, said block being providedwith a lower reversed V-shaped surface,all for the arrangement of saidshell and said block upon a shaft and against the element from which thekey is to be extracted, said jaw-block being provided withguide-channels, stems slidably disposed in said channels, and a grippingjaw upon each stem, means connected with said stems for forcing saidjaws into gripping relation with portions of the key, a screw-threadedstem extending from said jaw-block and through the opening in saidend-wall, and a nut upon said screwthreaded stem, all arranged forbringing said shell into resisting engagement with the element in whichthe key is located and cooperating with said gripping jaws for theextraction of the key.

12. A key-removing device comprising a main chambered cylindrical shellformed with an end-wall provided with an opening, said shell having anopenbottom and being opened at the end opposite said end-wall, and saidend-wall being provided with a reversed V-shaped marginal edge-portion,a jaw-block movably disposed in said shell, said block being providedwith a lower reversed V-shaped surface, all for the arrangement of saidshell and said block upon a shaft and against the element from which thekey is to be extracted, said jaw-block being provided withguide-channels, stems slidably disposed in said channels, and a grippingjaw upon each stem, each stem being also provided with a screw-threadedportion, an anchor nut upon the screw-threaded portions of said stems, ascrew threaded stem extending from said jaw-block and through theopening in said end-wall, and a nut upon said screw-threaded stem, allarranged for bringing said shell into resisting engagement with theelement in which the key is located and cooperating with said grippingjaws for the extraction of the key.

13. A key-removing device comprising a main chambered cylindrical shellformed with an end-wall provided with an opening, said shell having anopen bottom and being open at the end opposite said end-wall, and

said end-wall being provided with a reversed V-shaped marginaledge-portion, a jaw: block movably disposed in said shell, said blockbeing provided with a lower reversed V-shaped surface, all for thearrangement of said shell and said block upon a shaft and against theelement from which the key is to be extracted, said jaw-block beingprovided with guide-channels, stems slidably disposed in said channels,and a gripping jaw upon each stem, each stem being also provided with ascrew-threaded portion, an anchor nut upon the screw-threaded portionsof said stems, a screw-threaded stem extending from said jaw-block andthrough the opening in said end-wall, and a nut upon said screw-threadedstem, all arranged for bringing said shell into resisting engagementwith the element in which the key is located and cooperating with saidgripping jaw for the extraction of the key, and an adjusting nut movableupon said last-mentioned screwthreaded stem adapted to be brought intoengagement with the nuts upon said gripping jaw-provided stems.

14. A key-removing device comprising a main shell-like body, a grippingjaw Within said body, means within said body for actuating and bringingsaid jaw into gripped relation with a portion of a key, and an adjusting means cooperating with said jawactuating means, said shell-likebody being provided with an opening for access from the outside of saidbody to said adjusting means. l

15.'A key-removing device comprising a main shell-like body formed witha lower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a pluralityof gripping jaws within said body, said jaws being adapted to be broughtinto gripped relation with a portion of the key, and means cooperatingwith said jaws for anchoring the same during the extraction of the key,said shell-like body being provided with side-openings for access fromthe outside of said body to said anchoring means.

16. A key-removing device comprising a main shell-like body formed witha lower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a j awblockmovably arranged in said shell-like body, said jaw-block being providedwith guide-channels, stems slidably disposed in said channels, and agripping jaw upon each stem, each stem being also provided with ascrew-threaded portion, an anchor-nut upon the screw-threaded portionsof said stems, a screw-threaded stem extending from said jaw-block, anda nut upon said screw-threaded stem, all arranged for bringing saidshelllike body into resisting engagement with the element in which thekey is located and cooperating with said gripping jaws for theextraction of the key, said shell-like body being provided withside-openings for access from the outside of said body to saidanchornuts.

17. A key-removing device comprising a main shell-like body formed witha lower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a jaw-blockmovably arranged in said shelllike body, said jaw-block being providedwith guide-channels, stems slidably disposed in said channels, and agripping jaw upon each stem, each stem being also provided with ascrew-threaded portion, an anchor-nut upon the screw-threaded portionsof said stems, a screw-threaded stem extending from said jaw-block, anda nut upon said screwthreaded stem, all arranged for bringing saidshell-like body into resisting engagement with the element in which thekey is located and cooperating with said gripping jaws for theextraction of the key, and an adjusting nut upon said last-mentionedscrew-threaded stem adapted to be brought into engagement with saidanchor-nuts upon said gripping j aw-provided stems, said shelllike bodybeing provided with side-openings for access from the outside of saidbody to said'anchor nuts and also to said adjusting nut.

18. In a key removing device, a main shell-like body, formed with alower open portion, extending longitudinally the entire length of saidshell-like body, whereby said body may be caused. to engage with a shaftand the element from which the key is to be extracted, a gripping jawwithin said body, a socketed element in which said jaw is slidablydisposed, said socketed element and said gripping jaw having registeringshouldered portions to prevent rocking of the gripping jaw within saidsocketed element.

19. A key-removing device comprising a main shell-like body formed witha lower open portion for the arrangement of said body upon a shaft andagainst the element from which the key is to be extracted, a pluralityof gripping jaws within said body, a socketed element in which saidgripping jaws are slidably disposed, said socket-element and saidgripping jaws having registering shouldered portions to prevent rockingof the gripping jaws within said socketed element, means for forcingsaid jaws into gripping relation with portions of the key, and meansconnected with said socketed element for'bringing said shell-like bodyinto resisting engagement with the element in which the key islOcatedand cooperating with said gripping jaws for the jaws away from the keyafter engagement therewith.

21. A key-removing device, comprising a main shell-like body, formedwith a lower open portion, extending longitudinally the entire length ofsuch shell-like body, whereby the said body maybe caused to engage witha shaft and the element from which the key,

entire length of such shell-like body, where-- by the said body may becaused to engage with a shaft and the element from which the key is tobe extracted, a socketed element within said shell-like body, aplurality of gripping jaws connected with said socket element, said jawsbeing adapted to be brought into gripping relation with 'a portion ofthe key, means for forcing said jaws into gripping relation with saidportion of the key, means for preventing the lateral movement of thejaws away from the key after engagement therewith, and means connectedwith said socketed element for bring ingsaid shell-like body intoresisting engagement with the element in which the key is located andcooperating with said gripping jaws for the extraction of the key.

In testimony that I claim the invention set forth above I have hereuntoset my hand this eleventh day of November, 1913.

LOUIS GOLLY. V

Witnesses ARTHUR SPINOLO, THOMAS I-IERRON, Jr.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington. D. G)-

